EP 0868235 B1 20020911 - METHOD FOR FABRICATING A ONE-PIECE METAL VEHICLE WHEEL
Title (en)
METHOD FOR FABRICATING A ONE-PIECE METAL VEHICLE WHEEL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES EINTEILIGEN METALLFAHRZEUGRADES
Title (fr)
PROCEDE DE FABRICATION D'UNE ROUE METALLIQUE DE VEHICULE D'UNE SEULE PIECE
Publication
Application
Priority
- IB 9601489 W 19961127
- US 56493995 A 19951130
Abstract (en)
[origin: US5664329A] An improved method for fabricating a vehicle wheel from a one-piece sheet metal blank involves a nine station transfer die. In a first station, a sheet metal blank is drawn into a dish-shaped wall, a cylindrical outside wall, a first contour, and a first side wall. In the second station, the dish-shaped wall is reverse drawn to form a hub and an inside wall, and a valve hole is punched into the first contour. In the third station, the hub is flattened to be substantially perpendicular to an axial centerline of the partially fabricated wheel, and an outer peripheral edge of the first side wall is trimmed. In the fourth station, the inside wall is laterally formed so as to be in contact with the outside wall, and an outer peripheral edge of the first side wall is wiped over to form a flange. In the fifth station, a second contour is laterally formed. In the sixth station, a first offset and inner and outer hub-stiffening embosses are drawn into the hub. In the seventh station, a second offset is drawn in the hub, and a second side wall is laterally formed to complete a tire engaging rim. In the eighth station a center aperture and a plurality of wheel mounting holes are punched in the hub. Finally, in the ninth station, the center aperture and the wheel mounting holes are extruded, and a plurality of rim-stiffening embosses are laterally formed in the rim.
IPC 1-7
IPC 8 full level
B21D 53/26 (2006.01); B60B 3/02 (2006.01)
CPC (source: EP KR US)
B21D 53/264 (2013.01 - EP US); B21D 53/28 (2013.01 - KR); B60B 3/02 (2013.01 - EP US); Y10T 29/49503 (2015.01 - EP US); Y10T 29/49529 (2015.01 - EP US)
Designated contracting state (EPC)
AT DE ES FR GB IT PT SE
DOCDB simple family (publication)
WO 9719771 A1 19970605; AT E223768 T1 20020915; AU 1205997 A 19970619; BR 9611662 A 19991228; DE 69623645 D1 20021017; DE 69623645 T2 20030515; EP 0868235 A1 19981007; EP 0868235 B1 20020911; ES 2183988 T3 20030401; JP 2001507628 A 20010612; KR 19990071813 A 19990927; MX 9804216 A 19981031; US 5664329 A 19970909
DOCDB simple family (application)
IB 9601489 W 19961127; AT 96943272 T 19961127; AU 1205997 A 19961127; BR 9611662 A 19961130; DE 69623645 T 19961127; EP 96943272 A 19961127; ES 96943272 T 19961127; JP 52033097 A 19961127; KR 19980704093 A 19980530; MX 9804216 A 19980527; US 56493995 A 19951130